Imagine that friction suddenly vanishes. how would life be affected? list ten such situations.

Answer:

my answer to that question was c

Explanation:

Answer:

-56 m/s

Explanation:

The projectile motion of velocity can be modelled as:

\( \displaystyle{v = u + gt}\)

u is initial velocity which is given in the problem (4 m/s), t is time which is also already given in the problem (6 seconds) and g is a constant of acceleration due to gravity (9.8 m/s²)

However, since the egg is thrown upward which is against the gravity direction, the sign of direction must be negative. Hence, g = - 9.8 m/s²

\( \displaystyle{v = 4 - 9.8 \times 6} \\ \\ \displaystyle{v = 4 - 60} \\ \\ \displaystyle{v = - 56 \: \text{m/s}}\)

Answer:

The value we are given in the question is 1.24 * 10^7. This form of writing number is called scientific notation. The standard notation is the normal, regular way of writing numbers. Scientific notation and standard notations are interchangeable.

1.24 * 10^7 written in standard notation will be = 1.24 * 10000000 = 12400000.

Thus, the mass of the meteoroid was 12400000 kg.

Explanation:

Answer:

R= v/I

R= 9/1.05=8.5714 ohms

Answer:

First of all, what is acceleration? — Acceleration is the rate of change of velocity per unit of time.

Now, we know that velocity is a vector quantity i.e we need both magnitude and direction to define it and so is acceleration. We can now say that in acceleration, the direction of motion is very important or to define acceleration we need both the magnitude of motion (here it is the speed) and its direction.

Now coming to your question. There are two possible answers to this question.

more

,Case 2 — When the body is not moving in a straight line or is constantly changing its direction. In this cas the speed still is constant but the direction is constantly changing, for example in the case of a circular motion the direction of motion constantly changes (the direction of a moving body in a circular path at any point is the direction of the tangent of the circle at that point). Hence the velocity changes as the body move along the circular or curved path.

Now, as  I earlier mentioned to define acceleration we need to know it's magnitude and it's direction, and acceleration is the rate of change of velocity per unit of time — the speed remaining constant the direction constantly changing, and the velocity changes at different time intervals or rate of change of velocity is ≠ 0 unlike in case 1. Since there is the of and a change in velocity (speed constant but the direction is changing) there is some acceleration.

To sum everything up — in the case of linear motion i.e motion in a straight line when the speed is constant and direction is not changing, velocity will be zero and hence acceleration would be zero. In case of a non-linear motion i.e motion not in a straight line, in a circle or any path where the speed is constant but the direction is constantly changing, velocity will not be zero and hence the acceleration would not be equal to zero. Either it would be greater or less than zero.

Answer:

showing the differences between states of matter.

Answer:

D

Explanation:

the kinetic theory of matter states that matter is made up of molecules that are in continuous motion.this in turn talks about the different states of matter

Acceleration due to gravity on this planet = 29.21 m/s²

The acceleration an object experiences as a result of gravitational force is known as acceleration due to gravity. M/s² is its SI unit. Its vector nature—which includes both magnitude and direction—makes it a quantity. The unit g stands for gravitational acceleration. At sea level, the standard value of g on the earth's surface is 9.8 m/s2.

The length of time it takes for a basic pendulum to complete one revolution is known as its period. The period is inversely proportional to the gravitational acceleration and directly dependent on the pendulum's length.

We are given the following data :

The period of a simple pendulum is T = 1.8s

The length of the pendulum is L = 2.4m

A simple pendulum's period is expressed as follows:

\(T = 2\pi \sqrt \frac{L}{g}\)

When we enter the given values into the previously mentioned expression, we get:

\(1.8 = 2\pi \sqrt \frac{2.4}{g}\)

\(1.8 = (2\pi ^{2}) \frac{2.4}{g}\)

\(g = \frac{4\pi ^{2} * 2.4 }{(1.8)^{2} }\)

\(g = \frac{4* 3.14 * 3.14 * 2.4 }{1.8 * 1.8 } = \frac{94.66}{3.24} = 29.21 m/s^{2}\)

Therefore, acceleration due to gravity on this planet = 29.21 m/s²

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Answer:

Grounded ( neutral)

Explanation:

In electrical works there are usually safety measures which needs to be specially adhered to.

We have to take into perspective the dangers associated with the open neutral (grounded conductor) which is the main treason why NEC 300.13(B) does not permit the continuity of the grounded(neutral) conductor to depend on a receptacle.

Answer:

5

Explanation:

Option A is correct, conduction is the method by which the primary heat transfer mechanism does one end of a steel rod becomes hot when the other end is placed in a flame

Conduction is the manner with the aid of which heat is transferred from the warmer quit to the colder cease of an item. The ability of the item to behave warmth is known as its thermal conductivity and is denoted as k.

Heat spontaneously flows along a temperature gradient. for example, warmth is performed from the hotplate of an electric range to the bottom of a saucepan in contact with it. in the absence of an opposing external riding energy source, inside a frame or between bodies, temperature differences decay through the years, and thermal equilibrium is approached, temperature turning more uniform.

In conduction, the warmth glide within and via the body itself. In evaluation, in a warmness switch by using thermal radiation, the transfer is regular between bodies, which may be separated spatially. warmness also can be transferred by using a combination of conduction and radiation. In solids, conduction is mediated by way of the combination of vibrations and collisions of molecules, propagation and collisions of phonons, and diffusion and collisions of loose electrons. In gases and drinks, conduction is due to the collisions and diffusion of molecules at some stage in their random movement.

Photons in this context do not collide with one another, and so warmness delivery by using electromagnetic radiation is conceptually awesome from heat conduction by way of microscopic diffusion and collisions of cloth particles and phonons. but the difference is frequently now not easily found except the fabric is semi-transparent.

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Answer:

The Equivalence Principle of Gravity

Explanation:

The fact that objects fall to earth at the same speed is called the Equivalence Principle of Gravity.

According to the Equivalence Principle of Gravity, all things fall at the same rate when there is little to no air resistance. The value of the acceleration caused by gravity is demonstrated by the force of gravity equation to be a constant that is independent of the mass of the item.

According to Einstein's equivalence principle, it is unnecessary to distinguish between gravitational and inertial forces because they are comparable in nature.

Therefore, the Equivalence Principle of Gravity states that all objects descend to Earth at the same rate.

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The wave with the longest period is represented by option D.

Period is the time taken for one complete cycle of a wave to pass a given point. In the graph provided, the x-axis represents time and the y-axis represents displacement. By observing the graph, we can determine the period of each wave by measuring the distance between two consecutive peaks or troughs.

The wave with the longest period will have the greatest distance between two consecutive peaks or troughs, indicating a longer time for one complete cycle. From the information provided, we can see that wave D has the greatest distance between two consecutive peaks or troughs, indicating the longest period among the given options.

Therefore, option D represents the wave with the longest period.


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In order to get a stone slab to move, one would have to apply force to it. This can be done in a number of ways, depending on the situation. Here are a few possible laws that could be proposed for moving a stone slab:1. Newton's first law of motion: This law states that an object at rest will stay at rest unless acted upon by an external force. Therefore, to move a stone slab, one would need to apply a force to it.

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The given statement "If the radioactivity of a material is not known, the half-life cannot be determined" is (b). false statement because half-life, in radioactivity, is the amount of time needed for half of a radioactive sample's atomic nuclei to decay.

Or, alternatively, the amount of time needed for a radioactive material's rate of disintegrations per second to decrease by half. Cobalt-60, a radioactive isotope used in radiotherapy, has a half-life of 5.26 years, for instance. As a result, after that time, a sample that contained 8 g of cobalt-60 at first would only have 4 g of cobalt-60 and would produce half as much radiation. Only 2 g of cobalt-60 would remain in the sample after an additional delay of 5.26 years.

However, neither the volume nor the mass of the initial sample are shown to decrease because when cobalt decays, unstable cobalt-60 nuclei turn into stable nickel-60 nuclei, which stay with the cobalt that hasn't yet broken down.

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Answer:

Loyalty-Being loyal is important to being a good citizen because it shows that you acknowledge the effort others have put in to what you are doing and it shows that you enjoy what you are doing. Loyalty is important to a productive community because it promotes good work and effort

Explanation:

The solution to the equation ln(x) = x - 31, correct to six decimal places, is x ≈ 24.662174.

Newton's method, also known as Newton-Raphson method, is an iterative numerical method used to find the roots of a real-valued function. It is a powerful algorithm for finding solutions to equations where it may be difficult or impossible to obtain an analytical solution.

To find the solutions of the equation ln(x) = x - 31 using Newton's method, we start by rearranging the equation to f(x) = ln(x) - x + 31 = 0.

Next, we need to choose an initial guess for the solution, let's say x0 = 20.

Then, we can use the Newton's method iterative formula:

xn+1 = xn - f(xn)/f'(xn)

where f'(x) is the derivative of f(x).

For our equation, f'(x) = 1/x - 1.

Let's perform the iterations:

x1 = x0 - (ln(x0) - x0 + 31) / (1/x0 - 1)

x1 = 20 - (ln(20) - 20 + 31) / (1/20 - 1)

x1 ≈ 24.660633

x2 = x1 - (ln(x1) - x1 + 31) / (1/x1 - 1)

x2 ≈ 24.662174

x3 ≈ 24.662174

Performing additional iterations, we find that the value of x converges to approximately 24.662174.

Therefore, the solution to the equation ln(x) = x - 31, correct to six decimal places, is x ≈ 24.662174.

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The presence of so many commercial banks in the US is most likely the result of a highly competitive market and a decentralized regulatory system. This has led to the proliferation of smaller, community banks as well as large, multinational banking corporations.

Commercial banks are the primary financial institutions that handle deposits and loans for both individuals and businesses. They are also responsible for creating money through the process of fractional reserve banking, where banks can lend out more money than they have on reserve. In the United States, the banking industry is highly regulated by both federal and state governments, which have different rules and standards for different types of banks.

The competitive nature of the US economy, combined with the decentralization of banking regulation, has led to the emergence of a large number of commercial banks. This includes both national banks, which are chartered by the federal government, and state-chartered banks, which are regulated by state authorities. Many smaller banks are also locally-owned and operated, allowing them to better serve the specific needs of their customers.

Overall, the presence of so many commercial banks in the US is the result of a complex interplay between market forces, government regulations, and local economic conditions. It is a reflection of the diverse needs of individuals and businesses, as well as the diverse ways in which those needs can be met by different types of financial institutions.

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ANSWER:

B. red giant

STEP-BY-STEP EXPLANATION:

The Sun is currently a main sequence star and will remain so for another 5 billion years. It will then expand and cool down to become a red giant, after which it will contract and heat up again to become a white dwarf.

Therefore, the correct answer is: B. red giant

Answer:

A

Explanation:

Answer:

130 N basically

Explanation:

Answer:

this statement is true because I looked it up

Answer:

10hr

Explanation:

To get time of journey, we need calculate distance/speed. distance is 600, speed is 60, so answer is 600/60=10(hours)

Hope that this was helpful.

Answer:

Hey buddy, here is your answer. Hope it helps you.

Explanation:

Solids.Sound travels fastest through solids. This is because molecules in a solid are packed against each other. When a vibration begins, the molecules of a solid immediately collide and the compression wave travels rapidly.Sound moves slowest through a gas. That’s because the molecules in a gas are spaced very far apart. In order for sound to travel through air, the floating molecules of matter must vibrate and collide to form compression waves. Because the molecules of matter in a gas are spaced far apart, sound moves slowest through a gas.

Sound travels faster in liquids than in gases because molecules are packed more closely together. This means that when the water molecules begin to vibrate, they quickly begin to collide with each other forming a rapidly moving compression wave.

When you create a best-fit line, the expected value of the slope represents the average rate of change in the dependent variable (y) for every unit increase in the independent variable (x). The slope helps you make predictions and understand the relationship between the two variables in your dataset.

When you create a best-fit line, the expected value of the slope is the coefficient that represents the rate of change between the two variables being analyzed. The slope is determined by finding the ratio of the change in the dependent variable to the change in the independent variable.

It is important to note that the slope of a best-fit line is not always a perfect representation of the true relationship between the variables, but rather an approximation based on the available data. Therefore, the expected value of the slope is subject to variation and uncertainty depending on the specific data set and methodology used to create the best-fit line.
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Answer:

Approximately \(8.4 \times 10^{2}\; \rm N\), assuming that \(g = 9.8\; \rm m \cdot s^{-2}\).

Explanation:

Let \(m\) and \(a\) denote the mass and acceleration of Spiderman, respectively.

There are two forces on Spiderman:

The directions of these two forces are exactly opposite of one another. Besides, because Spiderman is accelerating upwards, the magnitude of \(F(\text{tension})\) (which points upwards) should be greater than that of \(W\) (which points downwards towards the ground.)

Subtract the smaller force from the larger one to find the net force on Spiderman:

\((\text{Net Force}) = F(\text{tension}) - W\).

On the other hand, apply Newton's Second Law of motion to find the value of the net force on Spiderman:

\((\text{Net Force}) = m \cdot a\).

Combine these two equations to get:

\(m \cdot a = (\text{Net Force}) = F(\text{tension}) - W\).

Therefore:

\(\begin{aligned}& F(\text{tension})\\ &= m \cdot a + W \\ &= m \cdot (a + g)\\ &= 76\; \rm kg \times \left(1.3\; \rm m \cdot s^{-2} + 9.8\; \rm m \cdot s^{-2}\right)\\ &\approx 8.4\times 10^{2}\; \rm N\end{aligned}\).

By Newton's Third Law of motion, Spiderman would exert a force of the same size on the strand of web. Hence, the size of the force in the strand of the web should be approximately \(8.4\times 10^{2}\; \rm N\) (downwards.)